Package org.apache.ofbiz.base.util

Class ObjectType

java.lang.Object

org.apache.ofbiz.base.util.ObjectType

public class ObjectType
extends Object

Utilities for analyzing and converting Object types in Java Takes advantage of reflection

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ObjectType.NullObject

Field Summary

Fields

Modifier and Type	Field	Description
static final Object	NULL

Constructor Summary

Constructors

Constructor	Description
ObjectType()

Method Summary

Modifier and Type	Method	Description
static Boolean	doRealCompare(Object value1, Object value2, String operator, String type, String format, List<Object> messages, Locale locale, ClassLoader loader, boolean value2InlineConstant)
static Object	getInstance(String className)	Returns an instance of the specified class.
static boolean	instanceOf(Class<?> objectClass, String typeName)	Tests if a class is a class of a sub-class of or properly implements an interface.
static boolean	instanceOf(Class<?> objectClass, String typeName, ClassLoader loader)	Tests if a class is a class of a sub-class of or properly implements an interface.
static boolean	instanceOf(Object obj, String typeName)	Tests if an object is an instance of a sub-class of or properly implements an interface.
static boolean	instanceOf(Object obj, String typeName, ClassLoader loader)	Tests if an object is an instance of a sub-class of or properly implements an interface.
static boolean	isEmpty(Object value)
static Class<?>	loadClass(String className)	Loads a class with the current thread's context classloader.
static Class<?>	loadClass(String className, ClassLoader loader)	Loads a class with the specified classloader.
static Object	simpleTypeOrObjectConvert(Object obj, String type, String format, Locale locale)	See also simpleTypeOrObjectConvert(Object obj, String type, String format, TimeZone timeZone, Locale locale, boolean noTypeFail).
static Object	simpleTypeOrObjectConvert(Object obj, String type, String format, Locale locale, boolean noTypeFail)	See also simpleTypeOrObjectConvert(Object obj, String type, String format, TimeZone timeZone, Locale locale, boolean noTypeFail).
static Object	simpleTypeOrObjectConvert(Object obj, String type, String format, TimeZone timeZone, Locale locale, boolean noTypeFail)	Converts the passed object to the named type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NULL

public static final Object NULL

Constructor Details

ObjectType

public ObjectType()

Method Details

loadClass

public static Class<?> loadClass(String className)
                          throws ClassNotFoundException

Loads a class with the current thread's context classloader.

Parameters:

className - The name of the class to load

Returns:

The requested class

Throws:

ClassNotFoundException

loadClass

public static Class<?> loadClass(String className,
 ClassLoader loader)
                          throws ClassNotFoundException

Loads a class with the specified classloader.

Parameters:

className - The name of the class to load

loader - The ClassLoader to use

Returns:

The requested class

Throws:

ClassNotFoundException

getInstance

public static Object getInstance(String className)
                          throws ClassNotFoundException,
InstantiationException,
IllegalAccessException,
NoSuchMethodException,
InvocationTargetException

Returns an instance of the specified class. This uses the default no-arg constructor to create the instance.

Parameters:

className - Name of the class to instantiate

Returns:

An instance of the named class

Throws:

ClassNotFoundException

InstantiationException

IllegalAccessException

NoSuchMethodException

InvocationTargetException

instanceOf

public static boolean instanceOf(Class<?> objectClass,
 String typeName)

Tests if a class is a class of a sub-class of or properly implements an interface.

Parameters:

objectClass - Class to test

typeName - name to test against

Returns:

true if objectClass is a class or a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(Object obj,
 String typeName)

Tests if an object is an instance of a sub-class of or properly implements an interface.

Parameters:

obj - Object to test

typeName - name to test against

Returns:

true if obj is an instance of a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(Class<?> objectClass,
 String typeName,
 ClassLoader loader)

Tests if a class is a class of a sub-class of or properly implements an interface.

Parameters:

objectClass - Class to test

typeName - Object to test against

loader -

Returns:

true if objectClass is a class of a sub-class of, or properly implements an interface

instanceOf

public static boolean instanceOf(Object obj,
 String typeName,
 ClassLoader loader)

Tests if an object is an instance of a sub-class of or properly implements an interface.

Parameters:

obj - Object to test

typeName - Object to test against

loader -

Returns:

true if obj is an instance of a sub-class of, or properly implements an interface

simpleTypeOrObjectConvert

public static Object simpleTypeOrObjectConvert(Object obj,
 String type,
 String format,
 Locale locale,
 boolean noTypeFail)
                                        throws GeneralException

See also simpleTypeOrObjectConvert(Object obj, String type, String format, TimeZone timeZone, Locale locale, boolean noTypeFail).

Throws:

GeneralException

simpleTypeOrObjectConvert

public static Object simpleTypeOrObjectConvert(Object obj,
 String type,
 String format,
 TimeZone timeZone,
 Locale locale,
 boolean noTypeFail)
                                        throws GeneralException

Converts the passed object to the named type. Initially created for only simple types but actually handle more types and not all simple types. See ObjectTypeTests class for more, and (normally) up to date information Supported types: - All PRIMITIVES - Simple types: String, Boolean, Double, Float, Long, Integer, BigDecimal. - Other Objects: List, Map, Set, Calendar, Date (java.sql.Date), Time, Timestamp, TimeZone, Date (util.Date and sql.Date) - Simple types (maybe) not handled: Short, BigInteger, Byte, Character, ObjectName and Void...

Parameters:

obj - Object to convert

type - Optional Java class name of type to convert to. A null or empty String will return the original object.

format - Optional (can be null) format string for Date, Time, Timestamp

timeZone - Optional (can be null) TimeZone for converting dates and times

locale - Optional (can be null) Locale for formatting and parsing Double, Float, Long, Integer

noTypeFail - Fail (Exception) when no type conversion is available, false will return the primary object

Returns:

the converted value

Throws:

GeneralException

simpleTypeOrObjectConvert

public static Object simpleTypeOrObjectConvert(Object obj,
 String type,
 String format,
 Locale locale)
                                        throws GeneralException

See also simpleTypeOrObjectConvert(Object obj, String type, String format, TimeZone timeZone, Locale locale, boolean noTypeFail).

Throws:

GeneralException

doRealCompare

public static Boolean doRealCompare(Object value1,
 Object value2,
 String operator,
 String type,
 String format,
 List<Object> messages,
 Locale locale,
 ClassLoader loader,
 boolean value2InlineConstant)

isEmpty

public static boolean isEmpty(Object value)